Cloud Gaming QoE Models for Deriving Video Encoding Adaptation Strategies

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• Autor: Ivan Slivar
• Autor: Lea Skorin-Kapov
• Autor: Mirko Sužnjević
• Autorova ustanova: Sveučilište u Zagrebu; Fakultet elektrotehnike i računarstva
• Znanstveno / umjetničko područje, polje i grana: TEHNIČKE ZNANOSTI; Računarstvo

Sažetak (engleski)

Cloud gaming has been recognized as a promising shift in the online game industry, with the aim being to deliver highquality graphics games to any type of end user device. The concepts of cloud computing are leveraged to render the game scene as a video stream which is then delivered to players in real-time. Given high bandwidth and strict latency requirements, a key challenge faced by cloud game providers lies in configuring the video encoding parameters so as to maximize player Quality of Experience (QoE) while meeting bandwidth availability constraints. In this paper we address this challenge by conducting a subjective laboratory study involving 52 players and two different games aimed at identifying QoE-driven video coding adaptation strategies. Empirical results are used to derive analytical QoE estimation models as functions of bitrate and framerate, while also taking into account game type and player skill. Results have shown that under certain identified bandwidth conditions, reductions of framerate lead to QoE improvements due to improved graphics quality. Given that results indicate that different QoE-driven video adaptation policies should likely be applied for different types of games, we further report on objective video metrics that may be used to classify games for the purpose of choosing an appropriate and QoE-driven video codec configuration strategy.

• Ključne riječi (engleski): Cloud gaming; QoE; Adaptation strategies; QoE modelling; Video encoding
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Radna verzija
• Naslov zbornika: Proceedings of the 7th ACM Multimedia Systems Conference
• Brojčani podaci: str. 1-12
• ISBN: 9781450342971
• URN:NBN: urn:nbn:hr:168:171296
• Datum objave publikacije: 2016
• Projekt: Šifra: UIP-2014-09-5605; Naziv (hrvatski): Kooperativno upravljanje iskustvenom kvalitetom upokretnim mrežama za interaktivne višemedijske aplikacije u računalom oblaku; Naziv (engleski): Cooperative Quality of Experience Management for Interactive Cloud-Based Multimedia Applications in Mobile Networks; Kratica: Q-MANIC; Voditelj: Lea Skorin-Kapov; Pravna nadležnost: Hrvatska; Financijer: HRZZ; Linija financiranja: UIP
• Skup: Naziv: MMSys '16: Proceedings of the 7th International Conference on Multimedia Systems; Lokacija: Klagenfurt, Austrija; Datum početka: 2016-05-10; Datum završetka: 2016-05-13; Vrsta izlaganja: Predavanje
• URL dokumenta: http://bib.irb.hr/804644
• Vrsta resursa: Tekst
• Izdavač: ACM
• Prava pristupa: Ograničen pristup
• Datum i vrijeme pohrane: 2022-05-18 09:40:27